EVANESCE

Ev′a‐nesce″ (ĕv′ȧ‐nĕs″), v. i. [imp. & p. p. Evanesced (–nĕst″); p. pr. & vb. n. Evanescing. (–nĕs″sĭng).] [[L. evanescere; e out + vanescere to vanish, fr. vanus empty, vain. See Vain, and cf. Evanish.]] To vanish away; to become dissipated and disappear, like vapor. I believe him to have evanesced or evaporated. De Quincey.